./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 577813f622c64f907053c4832aa01617433208d6dc94051427e21d3f2bb7bdeb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:43:42,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:43:42,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:43:42,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:43:42,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:43:42,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:43:42,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:43:42,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:43:42,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:43:42,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:43:42,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:43:42,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:43:42,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:43:42,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:43:42,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:43:42,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:43:42,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:43:42,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:43:42,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:43:42,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:43:42,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:43:42,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:43:42,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:43:42,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:43:42,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:43:42,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:43:42,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:43:42,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:43:42,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:43:42,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:43:42,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:43:42,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:43:42,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:43:42,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:43:42,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:43:42,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:43:42,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:43:42,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:43:42,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:43:42,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:43:42,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:43:42,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 18:43:42,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:43:42,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:43:42,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:43:42,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:43:42,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:43:42,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:43:42,430 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:43:42,431 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 18:43:42,431 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 18:43:42,431 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 18:43:42,432 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 18:43:42,433 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 18:43:42,433 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 18:43:42,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:43:42,434 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:43:42,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:43:42,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:43:42,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:43:42,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:43:42,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 18:43:42,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 18:43:42,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 18:43:42,436 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:43:42,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:43:42,436 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 18:43:42,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:43:42,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 18:43:42,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:43:42,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:43:42,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:43:42,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:43:42,441 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 18:43:42,441 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577813f622c64f907053c4832aa01617433208d6dc94051427e21d3f2bb7bdeb [2022-11-18 18:43:42,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:43:42,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:43:42,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:43:42,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:43:42,751 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:43:42,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2022-11-18 18:43:42,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/data/c2e7a86d4/44b18a10565a4fb494a24359e896d816/FLAG11181b4f4 [2022-11-18 18:43:43,328 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:43:43,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2022-11-18 18:43:43,339 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/data/c2e7a86d4/44b18a10565a4fb494a24359e896d816/FLAG11181b4f4 [2022-11-18 18:43:43,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/data/c2e7a86d4/44b18a10565a4fb494a24359e896d816 [2022-11-18 18:43:43,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:43:43,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:43:43,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:43:43,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:43:43,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:43:43,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:43:43" (1/1) ... [2022-11-18 18:43:43,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3932fd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:43, skipping insertion in model container [2022-11-18 18:43:43,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:43:43" (1/1) ... [2022-11-18 18:43:43,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:43:43,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:43:44,268 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c[13023,13036] [2022-11-18 18:43:44,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:43:44,330 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:43:44,403 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c[13023,13036] [2022-11-18 18:43:44,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:43:44,437 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:43:44,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44 WrapperNode [2022-11-18 18:43:44,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:43:44,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:43:44,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:43:44,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:43:44,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,494 INFO L138 Inliner]: procedures = 53, calls = 97, calls flagged for inlining = 50, calls inlined = 77, statements flattened = 525 [2022-11-18 18:43:44,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:43:44,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:43:44,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:43:44,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:43:44,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,524 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:43:44,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:43:44,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:43:44,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:43:44,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (1/1) ... [2022-11-18 18:43:44,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:43:44,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:43:44,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:43:44,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 18:43:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:43:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:43:44,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:43:44,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:43:44,765 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:43:44,769 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:43:45,178 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:43:45,187 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:43:45,187 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:43:45,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:45 BoogieIcfgContainer [2022-11-18 18:43:45,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:43:45,191 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 18:43:45,191 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 18:43:45,221 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 18:43:45,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:43:45,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 06:43:43" (1/3) ... [2022-11-18 18:43:45,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a6de00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:43:45, skipping insertion in model container [2022-11-18 18:43:45,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:43:45,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:43:44" (2/3) ... [2022-11-18 18:43:45,224 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a6de00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:43:45, skipping insertion in model container [2022-11-18 18:43:45,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:43:45,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:45" (3/3) ... [2022-11-18 18:43:45,226 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2022-11-18 18:43:45,294 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 18:43:45,294 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 18:43:45,294 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 18:43:45,294 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 18:43:45,295 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 18:43:45,295 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 18:43:45,295 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 18:43:45,295 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 18:43:45,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 156 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:45,330 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-11-18 18:43:45,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:43:45,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:43:45,336 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:45,336 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:45,336 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 18:43:45,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 156 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:45,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-11-18 18:43:45,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:43:45,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:43:45,347 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:45,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:45,353 INFO L748 eck$LassoCheckResult]: Stem: 142#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2#L580true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 54#L573true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 109#L588true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 136#L506true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 71#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 42#L786-2true [2022-11-18 18:43:45,354 INFO L750 eck$LassoCheckResult]: Loop: 42#L786-2true assume !false; 143#L787true assume test_~splverifierCounter~0#1 < 4; 155#L788true test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 103#L796true assume !(0 != test_~tmp~8#1); 58#L796-2true test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 76#L806true assume !(0 != test_~tmp___0~2#1); 115#L806-2true test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 77#L816true assume 0 != test_~tmp___2~0#1; 59#L822-2true assume { :begin_inline_timeShift } true; 62#L605true assume !(0 != ~pumpRunning~0); 88#L605-2true assume !(0 != ~systemActive~0); 132#L612-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 151#L885-1true __utac_acc__Specification1_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret28#1;havoc __utac_acc__Specification1_spec__1_#t~ret28#1; 37#L531true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 12#L531-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 117#L622true assume { :end_inline_timeShift } true; 42#L786-2true [2022-11-18 18:43:45,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:45,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-18 18:43:45,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:45,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706844044] [2022-11-18 18:43:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:45,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:45,522 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:45,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:43:45,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash 975704644, now seen corresponding path program 1 times [2022-11-18 18:43:45,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:45,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100997177] [2022-11-18 18:43:45,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:45,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:45,621 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:45,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:45,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:43:45,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:45,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1963843576, now seen corresponding path program 1 times [2022-11-18 18:43:45,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:45,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122914270] [2022-11-18 18:43:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:45,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:45,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:45,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:45,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122914270] [2022-11-18 18:43:45,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122914270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:45,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:45,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:43:45,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462218620] [2022-11-18 18:43:45,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:46,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:43:46,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:43:46,141 INFO L87 Difference]: Start difference. First operand has 156 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 155 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:46,235 INFO L93 Difference]: Finished difference Result 153 states and 199 transitions. [2022-11-18 18:43:46,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 199 transitions. [2022-11-18 18:43:46,241 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2022-11-18 18:43:46,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 143 states and 189 transitions. [2022-11-18 18:43:46,254 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2022-11-18 18:43:46,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2022-11-18 18:43:46,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 143 states and 189 transitions. [2022-11-18 18:43:46,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:43:46,256 INFO L218 hiAutomatonCegarLoop]: Abstraction has 143 states and 189 transitions. [2022-11-18 18:43:46,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states and 189 transitions. [2022-11-18 18:43:46,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2022-11-18 18:43:46,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 143 states have (on average 1.3216783216783217) internal successors, (189), 142 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:46,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 189 transitions. [2022-11-18 18:43:46,319 INFO L240 hiAutomatonCegarLoop]: Abstraction has 143 states and 189 transitions. [2022-11-18 18:43:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:43:46,325 INFO L428 stractBuchiCegarLoop]: Abstraction has 143 states and 189 transitions. [2022-11-18 18:43:46,325 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 18:43:46,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 189 transitions. [2022-11-18 18:43:46,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2022-11-18 18:43:46,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:43:46,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:43:46,329 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:46,329 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:46,329 INFO L748 eck$LassoCheckResult]: Stem: 468#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 386#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 329#L580 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 330#L573 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 408#L588 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 452#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 431#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 392#L786-2 [2022-11-18 18:43:46,330 INFO L750 eck$LassoCheckResult]: Loop: 392#L786-2 assume !false; 393#L787 assume test_~splverifierCounter~0#1 < 4; 469#L788 test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 450#L796 assume !(0 != test_~tmp~8#1); 414#L796-2 test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 415#L806 assume !(0 != test_~tmp___0~2#1); 433#L806-2 test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 434#L816 assume 0 != test_~tmp___2~0#1; 418#L822-2 assume { :begin_inline_timeShift } true; 419#L605 assume !(0 != ~pumpRunning~0); 404#L605-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 351#L663 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 353#L637-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 366#L629-3 assume { :end_inline_processEnvironment__wrappee__base } true; 363#L637-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 377#L663-1 assume { :end_inline_processEnvironment } true; 394#L612-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 464#L885-1 __utac_acc__Specification1_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret28#1;havoc __utac_acc__Specification1_spec__1_#t~ret28#1; 384#L531 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 344#L531-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 345#L622 assume { :end_inline_timeShift } true; 392#L786-2 [2022-11-18 18:43:46,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:46,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-18 18:43:46,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:46,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143050909] [2022-11-18 18:43:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:46,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:46,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:46,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:43:46,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:46,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1379375971, now seen corresponding path program 1 times [2022-11-18 18:43:46,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:46,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275399355] [2022-11-18 18:43:46,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:46,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:43:46,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:43:46,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:43:46,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275399355] [2022-11-18 18:43:46,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275399355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:43:46,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:43:46,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:43:46,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583541058] [2022-11-18 18:43:46,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:43:46,428 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 18:43:46,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:43:46,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:43:46,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:43:46,430 INFO L87 Difference]: Start difference. First operand 143 states and 189 transitions. cyclomatic complexity: 48 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:46,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:43:46,535 INFO L93 Difference]: Finished difference Result 198 states and 251 transitions. [2022-11-18 18:43:46,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 251 transitions. [2022-11-18 18:43:46,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2022-11-18 18:43:46,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 198 states and 251 transitions. [2022-11-18 18:43:46,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 198 [2022-11-18 18:43:46,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 198 [2022-11-18 18:43:46,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 198 states and 251 transitions. [2022-11-18 18:43:46,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:43:46,554 INFO L218 hiAutomatonCegarLoop]: Abstraction has 198 states and 251 transitions. [2022-11-18 18:43:46,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states and 251 transitions. [2022-11-18 18:43:46,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-18 18:43:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 197 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:43:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 251 transitions. [2022-11-18 18:43:46,565 INFO L240 hiAutomatonCegarLoop]: Abstraction has 198 states and 251 transitions. [2022-11-18 18:43:46,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:43:46,566 INFO L428 stractBuchiCegarLoop]: Abstraction has 198 states and 251 transitions. [2022-11-18 18:43:46,566 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 18:43:46,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 251 transitions. [2022-11-18 18:43:46,569 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 138 [2022-11-18 18:43:46,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:43:46,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:43:46,571 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:46,572 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:43:46,572 INFO L748 eck$LassoCheckResult]: Stem: 825#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~waterLevel~0 := 1;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 731#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 678#L580 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 679#L573 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 755#L588 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 805#L506 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 780#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet43#1, test_#t~nondet44#1, test_#t~nondet45#1, test_#t~nondet46#1, test_~splverifierCounter~0#1, test_~tmp~8#1, test_~tmp___0~2#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~8#1;havoc test_~tmp___0~2#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 740#L786-2 [2022-11-18 18:43:46,572 INFO L750 eck$LassoCheckResult]: Loop: 740#L786-2 assume !false; 741#L787 assume test_~splverifierCounter~0#1 < 4; 824#L788 test_~tmp~8#1 := test_#t~nondet43#1;havoc test_#t~nondet43#1; 801#L796 assume !(0 != test_~tmp~8#1); 762#L796-2 test_~tmp___0~2#1 := test_#t~nondet44#1;havoc test_#t~nondet44#1; 763#L806 assume !(0 != test_~tmp___0~2#1); 782#L806-2 test_~tmp___2~0#1 := test_#t~nondet45#1;havoc test_#t~nondet45#1; 783#L816 assume 0 != test_~tmp___2~0#1; 764#L822-2 assume { :begin_inline_timeShift } true; 765#L605 assume !(0 != ~pumpRunning~0); 768#L605-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret32#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 698#L663 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1; 699#L637-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret42#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 696#L925-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 697#L930-1 isHighWaterLevel_#t~ret42#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret42#1;havoc isHighWaterLevel_#t~ret42#1; 754#L765-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 713#L765-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 714#L771-1 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 760#L641-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 709#L629-2 assume { :end_inline_processEnvironment__wrappee__base } true; 710#L637-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 722#L663-1 assume { :end_inline_processEnvironment } true; 739#L612-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret28#1, __utac_acc__Specification1_spec__1_#t~ret29#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 820#L885-1 __utac_acc__Specification1_spec__1_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret28#1;havoc __utac_acc__Specification1_spec__1_#t~ret28#1; 729#L531 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 691#L531-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 692#L622 assume { :end_inline_timeShift } true; 740#L786-2 [2022-11-18 18:43:46,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:46,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-18 18:43:46,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:46,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091814423] [2022-11-18 18:43:46,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:46,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:46,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:46,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:43:46,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash -875871941, now seen corresponding path program 1 times [2022-11-18 18:43:46,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:46,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050193003] [2022-11-18 18:43:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:46,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:46,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:46,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:43:46,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:43:46,652 INFO L85 PathProgramCache]: Analyzing trace with hash -500584201, now seen corresponding path program 1 times [2022-11-18 18:43:46,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:43:46,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780665584] [2022-11-18 18:43:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:43:46,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:43:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:46,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:46,697 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:43:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:47,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:43:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:43:48,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 06:43:48 BoogieIcfgContainer [2022-11-18 18:43:48,018 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 18:43:48,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:43:48,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:43:48,019 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:43:48,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:43:45" (3/4) ... [2022-11-18 18:43:48,025 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-18 18:43:48,076 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:43:48,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:43:48,077 INFO L158 Benchmark]: Toolchain (without parser) took 4253.29ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 53.9MB in the beginning and 69.5MB in the end (delta: -15.6MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-11-18 18:43:48,077 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:43:48,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 607.31ms. Allocated memory is still 92.3MB. Free memory was 53.7MB in the beginning and 60.7MB in the end (delta: -6.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:43:48,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.32ms. Allocated memory is still 92.3MB. Free memory was 60.7MB in the beginning and 57.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:43:48,078 INFO L158 Benchmark]: Boogie Preprocessor took 33.86ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 55.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:43:48,079 INFO L158 Benchmark]: RCFGBuilder took 660.10ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 55.2MB in the beginning and 84.2MB in the end (delta: -29.0MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-11-18 18:43:48,079 INFO L158 Benchmark]: BuchiAutomizer took 2827.13ms. Allocated memory is still 111.1MB. Free memory was 84.2MB in the beginning and 72.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-11-18 18:43:48,080 INFO L158 Benchmark]: Witness Printer took 57.53ms. Allocated memory is still 111.1MB. Free memory was 72.7MB in the beginning and 69.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:43:48,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 607.31ms. Allocated memory is still 92.3MB. Free memory was 53.7MB in the beginning and 60.7MB in the end (delta: -6.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.32ms. Allocated memory is still 92.3MB. Free memory was 60.7MB in the beginning and 57.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.86ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 55.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 660.10ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 55.2MB in the beginning and 84.2MB in the end (delta: -29.0MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2827.13ms. Allocated memory is still 111.1MB. Free memory was 84.2MB in the beginning and 72.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Witness Printer took 57.53ms. Allocated memory is still 111.1MB. Free memory was 72.7MB in the beginning and 69.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 198 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 901 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 901 mSDsluCounter, 483 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 393 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 786]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int methaneLevelCritical = 0; [L598] int pumpRunning = 0; [L842] int waterLevel = 1; [L599] int systemActive = 1; [L416] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L777] int splverifierCounter ; [L778] int tmp ; [L779] int tmp___0 ; [L780] int tmp___1 ; [L781] int tmp___2 ; [L784] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L786] COND TRUE 1 [L788] COND TRUE splverifierCounter < 4 [L794] tmp = __VERIFIER_nondet_int() [L796] COND FALSE !(\read(tmp)) [L804] tmp___0 = __VERIFIER_nondet_int() [L806] COND FALSE !(\read(tmp___0)) [L814] tmp___2 = __VERIFIER_nondet_int() [L816] COND TRUE \read(tmp___2) [L829] CALL timeShift() [L605] COND FALSE !(\read(pumpRunning)) [L612] COND TRUE \read(systemActive) [L614] CALL processEnvironment() [L660] int tmp ; [L663] COND FALSE !(\read(pumpRunning)) [L678] CALL processEnvironment__wrappee__highWaterSensor() [L634] int tmp ; [L637] COND TRUE ! pumpRunning [L639] CALL, EXPR isHighWaterLevel() [L757] int retValue_acc ; [L758] int tmp ; [L759] int tmp___0 ; [L763] CALL, EXPR isHighWaterSensorDry() [L922] int retValue_acc ; [L925] COND TRUE waterLevel < 2 [L926] retValue_acc = 1 [L927] return (retValue_acc); [L763] RET, EXPR isHighWaterSensorDry() [L763] tmp = isHighWaterSensorDry() [L765] COND TRUE \read(tmp) [L766] tmp___0 = 0 [L770] retValue_acc = tmp___0 [L771] return (retValue_acc); [L639] RET, EXPR isHighWaterLevel() [L639] tmp = isHighWaterLevel() [L641] COND FALSE !(\read(tmp)) [L647] FCALL processEnvironment__wrappee__base() [L678] RET processEnvironment__wrappee__highWaterSensor() [L614] RET processEnvironment() [L620] CALL __utac_acc__Specification1_spec__1() [L524] int tmp ; [L525] int tmp___0 ; [L529] CALL, EXPR isMethaneLevelCritical() [L881] int retValue_acc ; [L884] retValue_acc = methaneLevelCritical [L885] return (retValue_acc); [L529] RET, EXPR isMethaneLevelCritical() [L529] tmp = isMethaneLevelCritical() [L531] COND FALSE !(\read(tmp)) [L620] RET __utac_acc__Specification1_spec__1() [L829] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 786]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int methaneLevelCritical = 0; [L598] int pumpRunning = 0; [L842] int waterLevel = 1; [L599] int systemActive = 1; [L416] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L777] int splverifierCounter ; [L778] int tmp ; [L779] int tmp___0 ; [L780] int tmp___1 ; [L781] int tmp___2 ; [L784] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L786] COND TRUE 1 [L788] COND TRUE splverifierCounter < 4 [L794] tmp = __VERIFIER_nondet_int() [L796] COND FALSE !(\read(tmp)) [L804] tmp___0 = __VERIFIER_nondet_int() [L806] COND FALSE !(\read(tmp___0)) [L814] tmp___2 = __VERIFIER_nondet_int() [L816] COND TRUE \read(tmp___2) [L829] CALL timeShift() [L605] COND FALSE !(\read(pumpRunning)) [L612] COND TRUE \read(systemActive) [L614] CALL processEnvironment() [L660] int tmp ; [L663] COND FALSE !(\read(pumpRunning)) [L678] CALL processEnvironment__wrappee__highWaterSensor() [L634] int tmp ; [L637] COND TRUE ! pumpRunning [L639] CALL, EXPR isHighWaterLevel() [L757] int retValue_acc ; [L758] int tmp ; [L759] int tmp___0 ; [L763] CALL, EXPR isHighWaterSensorDry() [L922] int retValue_acc ; [L925] COND TRUE waterLevel < 2 [L926] retValue_acc = 1 [L927] return (retValue_acc); [L763] RET, EXPR isHighWaterSensorDry() [L763] tmp = isHighWaterSensorDry() [L765] COND TRUE \read(tmp) [L766] tmp___0 = 0 [L770] retValue_acc = tmp___0 [L771] return (retValue_acc); [L639] RET, EXPR isHighWaterLevel() [L639] tmp = isHighWaterLevel() [L641] COND FALSE !(\read(tmp)) [L647] FCALL processEnvironment__wrappee__base() [L678] RET processEnvironment__wrappee__highWaterSensor() [L614] RET processEnvironment() [L620] CALL __utac_acc__Specification1_spec__1() [L524] int tmp ; [L525] int tmp___0 ; [L529] CALL, EXPR isMethaneLevelCritical() [L881] int retValue_acc ; [L884] retValue_acc = methaneLevelCritical [L885] return (retValue_acc); [L529] RET, EXPR isMethaneLevelCritical() [L529] tmp = isMethaneLevelCritical() [L531] COND FALSE !(\read(tmp)) [L620] RET __utac_acc__Specification1_spec__1() [L829] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-18 18:43:48,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ece21e9-37c0-4fdb-9542-773ad6edc6e1/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)